The aim of the study was to estimate and to compare effective doses in the elbow region resulting from four different x‐ray imaging modalities. Absorbed organ doses were measured using 11 metal oxide field effect transistor (MOSFET) dosimeters that were placed in a custom‐made anthropomorphic elbow RANDO phantom. Examinations were performed using Shimadzu FH‐21 HR radiography device, Siemens Sensation Open 24‐slice MSCT‐device, NewTom 5G CBCT device, and Planmed Verity CBCT device, and the effective doses were calculated according to ICRP 103 recommendations. The effective dose for the conventional radiographic device was 1.5 µSv. The effective dose for the NewTom 5G CBCT ranged between 2.0 and 6.7 µSv, for the Planmed Verity CBCT device 2.6 µSv and for the Siemens Sensation MSCT device 37.4 µSv. Compared with conventional 2D radiography, this study demonstrated a 1.4–4.6 fold increase in effective dose for CBCT and 25‐fold dose for standard MSCT protocols. When compared with 3D CBCT protocols, the study showed a 6‐19 fold increase in effective dose using a standard MSCT protocol. CBCT devices offer a feasible low‐dose alternative for elbow 3D imaging when compared to MSCT.

中文翻译：

---

肘部放射摄影装置、MSCT 装置和两种 CBCT 装置的剂量测定比较

该研究的目的是估计和比较四种不同 X 射线成像方式产生的肘部区域的有效剂量。使用 11 个金属氧化物场效应晶体管 (MOSFET) 剂量计测量吸收的器官剂量，这些剂量计放置在定制的拟人弯头 RANDO 模型中。检查使用岛津FH-21 HR放射成像设备、西门子Sensation Open 24层MSCT设备、NewTom 5G CBCT设备和Planmed Verity CBCT设备进行，并根据ICRP 103建议计算有效剂量。传统放射线照相设备的有效剂量为 1.5 µSv。NewTom 5G CBCT 的有效剂量范围为 2.0 至 6.7 µSv，Planmed Verity CBCT 设备的有效剂量为 2.6 µSv，Siemens Sensation MSCT 设备的有效剂量为 37.4 µSv。与传统的 2D 射线照相相比，本研究证明 CBCT 的有效剂量增加了 1.4-4.6 倍，标准 MSCT 方案的剂量增加了 25 倍。与 3D CBCT 方案相比，该研究显示，使用标准 MSCT 方案的有效剂量增加了 6‐19 倍。与 MSCT 相比，CBCT 设备为肘部 3D 成像提供了一种可行的低剂量替代方案。